Primary internal terminology and context source across 105 chapters.
HOK-DIA-TERM-043 · Fancy colors
Brown graining
A brown optical appearance associated with plastic deformation and defect structures in some natural diamonds.
PreferredStable3 chapters
RELATED TERMS
Terminology network
FULL CONTEXT
Related chapters of The Book
TERMINOLOGY BASIS
Sources and authorities
The records below form the terminology basis for this entry or its category. This does not mean that every source defines every word on this page. The canonical manuscript remains the primary contextual source, while each external standard, laboratory policy, or regulatory guideline applies only within its own scope.